Principle 3 Understandable · Guideline 3.2: Predictable
3.2.1 On Focus
Focusing an element must not trigger a change of context.
What this means in practice
A select that navigates as soon as it receives focus makes keyboard use impossible – you can never reach the options below.
Normative wording
The binding text lives at the W3C. What you read here is our own faithful rendering – not a quotation.